Apple today put HBO GO on the list of video apps supported in its new TV app via the Single-sign on feature that recently launched in iOS 10 and tvOS 10.
This lets HBO GO users sign in with their cable or satellite credentials on their iPhone, iPad, iPod touch or Apple TV to enjoy instant access to HBO shows, not only in Apple's own TV app but in other supported video apps that their pay TV subscription includes.
The refreshed HBO GO app includes another handy feature which lets you continue watching your last-watched HBO movie or TV episode from the TV app's main screen.
Single Sign-On is currently supported in these apps:
ABC (iOS and tvOS)A&amp;E (iOS)Bravo Now (tvOS)DirecTV (iOS)Disney Channel (iOS and tvOS)Disney Junior (iOS and tvOS)Disney XD (iOS and tvOS)E! Now (tvOS)ESPN (iOS)Freeform (iOS)FXNOW (tvOS)Hallmark Channel Everywhere (iOS and tvOS)HBO GO (iOS and tvOS)History (iOS)Lifetime (iOS)NBC (tvOS)Syfy Now (tvOS)Telemundo Now (tvOS)USA NOW (tvOS)Watch Cooking Channel (iOS and tvOS)Watch DIY (iOS and tvOS)WatchESPN (iOS and tvOS)Watch Food Network (iOS and tvOS)Watch HGTV (iOS and tvOS)Watch Travel Channel (iOS and tvOS)The following cable providers supported Single Sign-On at the time of this writing:
Cable ONECenturyLink PrismDirecTVDishGVTCGTAHawaiian TelcomHotwireMetroCastService ElectricSlingSingle Sing-On is currently limited to the United States.
The full list of Single Sign-On providers can be found in Apple's support document
Source: Apple